Fix another C0000005 ACCESS_VIOLATION

https://github.com/liyunfan1223/mod-playerbots/issues/1537

conf/playerbots.conf.dist

@@ -502,8 +502,8 @@ AiPlayerbot.AutoGearScoreLimit = 0
 # "power" (bots have infinite energy, rage, and runic power)
 # "taxi" (bots may use all flight paths, though they will not actually learn them) 
 # "raid" (bots use cheats implemented into raid strategies) 
-# To use multiple cheats, separate them by commas below (e.g., to enable all, use "gold,health,mana,power,taxi")
-# Default: taxi is enabled
+# To use multiple cheats, separate them by commas below (e.g., to enable all, use "gold,health,mana,power,raid,taxi")
+# Default: taxi and raid are enabled
 AiPlayerbot.BotCheats = "taxi,raid" 
 
 #
@@ -1107,7 +1107,7 @@ AiPlayerbot.RandomBotArenaTeamMinRating = 1000
 AiPlayerbot.DeleteRandomBotArenaTeams = 0
 
 # PvP Restricted Zones (bots don't pvp)
-AiPlayerbot.PvpProhibitedZoneIds = "2255,656,2361,2362,2363,976,35,2268,3425,392,541,1446,3828,3712,3738,3565,3539,3623,4152,3988,4658,4284,4418,4436,4275,4323,4395,3703,4298,139,3951"
+AiPlayerbot.PvpProhibitedZoneIds = "2255,656,2361,2362,2363,976,35,2268,3425,392,541,1446,3828,3712,3738,3565,3539,3623,4152,3988,4658,4284,4418,4436,4275,4323,4395,3703,4298,3951"
 
 # PvP Restricted Areas (bots don't pvp)
 AiPlayerbot.PvpProhibitedAreaIds = "976,35,392,2268,4161,4010,4317,4312,3649,3887,3958,3724,4080"

src/BroadcastHelper.cpp

@@ -947,8 +947,21 @@ bool BroadcastHelper::BroadcastSuggestThunderfury(PlayerbotAI* ai, Player* bot)
     {
         std::map<std::string, std::string> placeholders;
         ItemTemplate const* thunderfuryProto = sObjectMgr->GetItemTemplate(19019);
-        placeholders["%thunderfury_link"] = GET_PLAYERBOT_AI(bot)->GetChatHelper()->FormatItem(thunderfuryProto);
-
+        // placeholders["%thunderfury_link"] = GET_PLAYERBOT_AI(bot)->GetChatHelper()->FormatItem(thunderfuryProto); // Old code
+		// [Crash fix] Protect from nil AI : a real player doesn't have PlayerbotAI.
+        // Before: direct deref GET_PLAYERBOT_AI(bot)->... could crash World/General.
+        if (auto* ai = GET_PLAYERBOT_AI(bot))
+        {
+	        if (auto* chat = ai->GetChatHelper())
+		        placeholders["%thunderfury_link"] = chat->FormatItem(thunderfuryProto);
+	        else
+		        placeholders["%thunderfury_link"] = ""; // fallback: no chat helper
+        }
+        else
+        {
+	        placeholders["%thunderfury_link"] = "";     // fallback: no d'AI (real player)
+        }
+        // End crash fix
         return BroadcastToChannelWithGlobalChance(
             ai,
             BOT_TEXT2("thunderfury_spam", placeholders),

src/PlayerbotAI.cpp

@@ -2373,7 +2373,7 @@ std::string PlayerbotAI::GetLocalizedGameObjectName(uint32 entry)
     return name;
 }
 
-std::vector<Player*> PlayerbotAI::GetPlayersInGroup()
+/*std::vector<Player*> PlayerbotAI::GetPlayersInGroup()
 {
     std::vector<Player*> members;
 
@@ -2392,6 +2392,34 @@ std::vector<Player*> PlayerbotAI::GetPlayersInGroup()
         members.push_back(ref->GetSource());
     }
 
+    return members;
+}*/
+
+std::vector<Player*> PlayerbotAI::GetPlayersInGroup()
+{
+    std::vector<Player*> members;
+
+    Group* group = bot->GetGroup();
+    if (!group)
+        return members;
+
+    for (GroupReference* ref = group->GetFirstMember(); ref; ref = ref->next())
+    {
+        Player* member = ref->GetSource();
+        if (!member)
+            continue;
+
+        // Celaning, we don't call 2 times GET_PLAYERBOT_AI and never reference it if nil
+        if (auto* ai = GET_PLAYERBOT_AI(member))
+        {
+            // If it's a bot (not real player) => we ignor it
+            if (!ai->IsRealPlayer())
+                continue;
+        }
+
+        members.push_back(member);
+    }
+
     return members;
 }
 
@@ -3970,15 +3998,37 @@ bool IsAlliance(uint8 race)
 
 bool PlayerbotAI::HasRealPlayerMaster()
 {
-    if (master)
+//     if (master)
+//     {
+//         PlayerbotAI* masterBotAI = GET_PLAYERBOT_AI(master);
+//         return !masterBotAI || masterBotAI->IsRealPlayer();
+//     }
+// 
+//     return false;
+
+     // Removes a long-standing crash (0xC0000005 ACCESS_VIOLATION)
+    /* 1) The "master" pointer can be null if the bot was created
+          without a master player or if the master was just removed. */
+    if (!master)
+        return false;
+
+ /* 2) Is the master player still present in the world?
+          If FindPlayer fails, we invalidate "master" and stop here. */
+    if (!ObjectAccessor::FindPlayer(master->GetGUID()))
     {
-        PlayerbotAI* masterBotAI = GET_PLAYERBOT_AI(master);
-        return !masterBotAI || masterBotAI->IsRealPlayer();
+        master = nullptr;           // avoids repeating the check on the next tick
+        return false;
     }
 
-    return false;
+   /* 3) If the master is a bot, we check that it is itself controlled
+          by a real player. Otherwise, it's already a real player → true. */
+    if (PlayerbotAI* masterBotAI = GET_PLAYERBOT_AI(master))
+        return masterBotAI->IsRealPlayer();   // bot controlled by a player?
+
+    return true;                              // master = real player
 }
 
+
 bool PlayerbotAI::HasActivePlayerMaster() { return master && !GET_PLAYERBOT_AI(master); }
 
 bool PlayerbotAI::IsAlt() { return HasRealPlayerMaster() && !sRandomPlayerbotMgr->IsRandomBot(bot); }
@@ -4192,19 +4242,6 @@ bool PlayerbotAI::AllowActive(ActivityType activityType)
         }
     }
 
-    // only keep updating till initializing time has completed,
-    // which prevents unneeded expensive GameTime calls.
-    if (_isBotInitializing)
-    {
-        _isBotInitializing = GameTime::GetUptime().count() < sPlayerbotAIConfig->maxRandomBots * 0.11;
-
-        // no activity allowed during bot initialization
-        if (_isBotInitializing)
-        {
-            return false;
-        }
-    }
-
     // General exceptions
     if (activityType == PACKET_ACTIVITY)
     {

src/PlayerbotAI.h

@@ -611,7 +611,6 @@ private:
     Item* FindItemInInventory(std::function<bool(ItemTemplate const*)> checkItem) const;
     void HandleCommands();
     void HandleCommand(uint32 type, const std::string& text, Player& fromPlayer, const uint32 lang = LANG_UNIVERSAL);
-    bool _isBotInitializing = false;
 
 protected:
     Player* bot;

src/PlayerbotAIConfig.cpp

@@ -148,7 +148,7 @@ bool PlayerbotAIConfig::Initialize()
     LoadList<std::vector<uint32>>(
         sConfigMgr->GetOption<std::string>("AiPlayerbot.PvpProhibitedZoneIds",
                                            "2255,656,2361,2362,2363,976,35,2268,3425,392,541,1446,3828,3712,3738,3565,"
-                                           "3539,3623,4152,3988,4658,4284,4418,4436,4275,4323,4395,3703,4298,139,3951"),
+                                           "3539,3623,4152,3988,4658,4284,4418,4436,4275,4323,4395,3703,4298,3951"),
         pvpProhibitedZoneIds);
     LoadList<std::vector<uint32>>(sConfigMgr->GetOption<std::string>("AiPlayerbot.PvpProhibitedAreaIds", "976,35"),
                                   pvpProhibitedAreaIds);

src/PlayerbotMgr.cpp

@@ -36,8 +36,28 @@
 #include "BroadcastHelper.h"
 #include "PlayerbotDbStore.h"
 #include "WorldSessionMgr.h"
-#include "DatabaseEnv.h"        // Added for gender choice
-#include <algorithm>            // Added for gender choice
+#include "DatabaseEnv.h"
+#include <algorithm>
+#include "Log.h"
+#include <shared_mutex> // removes a long-standing crash (0xC0000005 ACCESS_VIOLATION)
+#include "TravelMgr.h"
+
+namespace {
+    // [Crash fix] Centralize clearing of pointer values in the AI context
+    static void ClearAIContextPointerValues(PlayerbotAI* ai)
+    {
+        if (!ai) return;
+        if (AiObjectContext* ctx = ai->GetAiObjectContext())
+        {
+            // Known today
+            if (auto* tt = ctx->GetValue<TravelTarget*>("travel target"))
+                tt->Set(nullptr);
+
+            // TODO: add other pointer-type values here if you have any
+            // e.g.: ctx->GetValue<SomePtr>("some key")->Set(nullptr);
+        }
+    }
+}
 
 class BotInitGuard
 {
@@ -122,7 +142,7 @@ void PlayerbotHolder::AddPlayerBot(ObjectGuid playerGuid, uint32 masterAccountId
         PlayerbotMgr* mgr = GET_PLAYERBOT_MGR(masterPlayer);
         if (!mgr)
         {
-            LOG_DEBUG("playerbots", "PlayerbotMgr not found for master player with GUID: {}", masterPlayer->GetGUID().GetRawValue());
+            LOG_DEBUG("mod-playerbots", "PlayerbotMgr not found for master player with GUID: {}", masterPlayer->GetGUID().GetRawValue());
             return;
         }
         uint32 count = mgr->GetPlayerbotsCount() + botLoading.size();
@@ -202,31 +222,70 @@ void PlayerbotHolder::HandlePlayerBotLoginCallback(PlayerbotLoginQueryHolder con
 
 void PlayerbotHolder::UpdateSessions()
 {
-    for (PlayerBotMap::const_iterator itr = GetPlayerBotsBegin(); itr != GetPlayerBotsEnd(); ++itr)
+    // snapshot of keys
+    std::vector<ObjectGuid> guids;
+    guids.reserve(playerBots.size());
+    for (auto const& kv : playerBots)
+        guids.push_back(kv.first);
+
+    // safe iterate of snapshot of keys.
+    for (ObjectGuid const& guid : guids)
     {
-        Player* const bot = itr->second;
+        Player* bot = GetPlayerBot(guid);
+        if (!bot)
+            continue;
+
         if (bot->IsBeingTeleported())
         {
-            PlayerbotAI* botAI = GET_PLAYERBOT_AI(bot);
-            if (botAI)
+            if (PlayerbotAI* botAI = GET_PLAYERBOT_AI(bot))
             {
                 botAI->HandleTeleportAck();
+
+                // Don’t process packets in the same tick as a teleport ack
+                continue;
             }
         }
-        else if (bot->IsInWorld())
+
+        if (!bot->IsInWorld())
         {
-            HandleBotPackets(bot->GetSession());
+            continue;
+        }
+
+        if (WorldSession* sess = bot->GetSession())
+        {
+            // This may log the bot out or mutate the map, hence the usage of a snapshop
+            HandleBotPackets(sess);
         }
     }
 }
 
-void PlayerbotHolder::HandleBotPackets(WorldSession* session)
+/*void PlayerbotHolder::HandleBotPackets(WorldSession* session)
 {
     WorldPacket* packet;
     while (session->GetPacketQueue().next(packet))
     {
         OpcodeClient opcode = static_cast<OpcodeClient>(packet->GetOpcode());
         ClientOpcodeHandler const* opHandle = opcodeTable[opcode];
+        opHandle->Call(session, *packet);
+        delete packet;
+    }
+}*/
+
+void PlayerbotHolder::HandleBotPackets(WorldSession* session) // [Crash Fix] Secure packet dispatch (avoid calling on a null handler)
+{
+    WorldPacket* packet;
+    while (session->GetPacketQueue().next(packet))
+    {
+        const OpcodeClient opcode = static_cast<OpcodeClient>(packet->GetOpcode());
+        const ClientOpcodeHandler* opHandle = opcodeTable[opcode];
+
+        if (!opHandle)
+        {
+            // Unknown handler: drop cleanly
+            delete packet;
+            continue;
+        }
+
         opHandle->Call(session, *packet);
         delete packet;
     }
@@ -316,10 +375,13 @@ void PlayerbotHolder::LogoutPlayerBot(ObjectGuid guid)
             sPlayerbotDbStore->Save(botAI);
         }
 
-        LOG_DEBUG("playerbots", "Bot {} logging out", bot->GetName().c_str());
+        LOG_DEBUG("mod-playerbots", "Bot {} logging out", bot->GetName().c_str());
         bot->SaveToDB(false, false);
 
-        WorldSession* botWorldSessionPtr = bot->GetSession();
+        // WorldSession* botWorldSessionPtr = bot->GetSession();
+		WorldSession* botWorldSessionPtr = bot->GetSession(); // Small safeguard on the session (as a precaution)
+        if (!botWorldSessionPtr)
+            return;
         WorldSession* masterWorldSessionPtr = nullptr;
 
         if (botWorldSessionPtr->isLogingOut())
@@ -352,11 +414,13 @@ void PlayerbotHolder::LogoutPlayerBot(ObjectGuid guid)
             logout = true;
         }
 
-        TravelTarget* target = nullptr;
+        /*TravelTarget* target = nullptr;
         if (botAI->GetAiObjectContext())  // Maybe some day re-write to delate all pointer values.
         {
             target = botAI->GetAiObjectContext()->GetValue<TravelTarget*>("travel target")->Get();
-        }
+        }*/
+        // [Crash fix] Centralized cleanup of pointer values in the context
+        ClearAIContextPointerValues(botAI);
 
         // Peiru: Allow bots to always instant logout to see if this resolves logout crashes
         logout = true;
@@ -373,19 +437,25 @@ void PlayerbotHolder::LogoutPlayerBot(ObjectGuid guid)
                 botWorldSessionPtr->HandleLogoutRequestOpcode(data);
                 if (!bot)
                 {
-                    RemoveFromPlayerbotsMap(guid);
+                    /*RemoveFromPlayerbotsMap(guid);
                     delete botWorldSessionPtr;
                     if (target)
-                        delete target;
+                        delete target;*/
+					// [Crash fix] bot can be destroyed by the logout request: clean up without touching old pointers
+                    RemoveFromPlayerbotsMap(guid);
+                    delete botWorldSessionPtr;
                 }
                 return;
             }
             else
             {
-                RemoveFromPlayerbotsMap(guid);     // deletes bot player ptr inside this WorldSession PlayerBotMap
+                /*RemoveFromPlayerbotsMap(guid);     // deletes bot player ptr inside this WorldSession PlayerBotMap
                 delete botWorldSessionPtr;  // finally delete the bot's WorldSession
                 if (target)
-                    delete target;
+                    delete target;*/
+				// [Crash fix] no more deleting 'target' here: ownership handled by the AI/Context
+                RemoveFromPlayerbotsMap(guid);     // deletes bot player ptr inside this WorldSession PlayerBotMap
+                delete botWorldSessionPtr;         // finally delete the bot's WorldSession
             }
             return;
         }  // if instant logout possible, do it
@@ -418,11 +488,11 @@ void PlayerbotHolder::DisablePlayerBot(ObjectGuid guid)
             sPlayerbotDbStore->Save(botAI);
         }
 
-        LOG_DEBUG("playerbots", "Bot {} logged out", bot->GetName().c_str());
+        LOG_DEBUG("mod-playerbots", "Bot {} logged out", bot->GetName().c_str());
 
         bot->SaveToDB(false, false);
 
-        if (botAI->GetAiObjectContext())  // Maybe some day re-write to delate all pointer values.
+        /*if (botAI->GetAiObjectContext())  // Maybe some day re-write to delate all pointer values.
         {
             TravelTarget* target = botAI->GetAiObjectContext()->GetValue<TravelTarget*>("travel target")->Get();
             if (target)
@@ -431,7 +501,9 @@ void PlayerbotHolder::DisablePlayerBot(ObjectGuid guid)
 
         RemoveFromPlayerbotsMap(guid);  // deletes bot player ptr inside this WorldSession PlayerBotMap
 
-        delete botAI;
+        delete botAI;*/
+        // [Crash fix] Centralized cleanup of pointer values in the context
+        ClearAIContextPointerValues(botAI);
     }
 }
 
@@ -527,6 +599,9 @@ void PlayerbotHolder::OnBotLogin(Player* const bot)
     {
         botAI->ResetStrategies(!sRandomPlayerbotMgr->IsRandomBot(bot));
     }
+
+    botAI->Reset(true);  // Reset transient states (incl. LFG "proposal") to avoid the "one or more players are not eligible" error after reconnect.
+
     sPlayerbotDbStore->Load(botAI);
 
     if (master && !master->HasUnitState(UNIT_STATE_IN_FLIGHT))
@@ -546,16 +621,21 @@ void PlayerbotHolder::OnBotLogin(Player* const bot)
     if (master && master->GetGroup() && !group)
     {
         Group* mgroup = master->GetGroup();
-        if (mgroup->GetMembersCount() >= 5)
+        // if (mgroup->GetMembersCount() >= 5)
+        if (mgroup->GetMembersCount() + 1 > 5)  // only convert in raid if the add of THIS bot make group > 5
         {
             if (!mgroup->isRaidGroup() && !mgroup->isLFGGroup() && !mgroup->isBGGroup() && !mgroup->isBFGroup())
             {
                 mgroup->ConvertToRaid();
             }
-            if (mgroup->isRaidGroup())
-            {
-                mgroup->AddMember(bot);
-            }
+            //if (mgroup->isRaidGroup())
+            //{
+                //mgroup->AddMember(bot);
+            //}
+            mgroup->AddMember(bot);
+
+            LOG_DEBUG("mod-playerbots", "[GROUP] after add: members={}, isRaid={}, isLFG={}",
+                      (int)mgroup->GetMembersCount(), mgroup->isRaidGroup() ? 1 : 0, mgroup->isLFGGroup() ? 1 : 0);
         }
         else
         {
@@ -734,9 +814,11 @@ std::string const PlayerbotHolder::ProcessBotCommand(std::string const cmd, Obje
         }
     }
 
-    if (GET_PLAYERBOT_AI(bot))
+    // if (GET_PLAYERBOT_AI(bot))
+    if (PlayerbotAI* ai = GET_PLAYERBOT_AI(bot)) // [Tidy/Crash fix] Acquire AI once and reuse; avoid multiple GET_PLAYERBOT_AI calls.
     {
-        if (Player* master = GET_PLAYERBOT_AI(bot)->GetMaster())
+        // if (Player* master = GET_PLAYERBOT_AI(bot)->GetMaster())
+        if (Player* master = ai->GetMaster())
         {
             if (master->GetSession()->GetSecurity() <= SEC_PLAYER && sPlayerbotAIConfig->autoInitOnly &&
                 cmd != "init=auto")
@@ -1591,7 +1673,7 @@ void PlayerbotMgr::OnBotLoginInternal(Player* const bot)
     botAI->SetMaster(master);
     botAI->ResetStrategies();
 
-    LOG_INFO("playerbots", "Bot {} logged in", bot->GetName().c_str());
+    LOG_INFO("mod-playerbots", "Bot {} logged in", bot->GetName().c_str());
 }
 
 void PlayerbotMgr::OnPlayerLogin(Player* player)
@@ -1726,23 +1808,72 @@ void PlayerbotsMgr::RemovePlayerBotData(ObjectGuid const& guid, bool is_AI)
 
 PlayerbotAI* PlayerbotsMgr::GetPlayerbotAI(Player* player)
 {
-    if (!(sPlayerbotAIConfig->enabled) || !player)
-    {
-        return nullptr;
-    }
-    // if (player->GetSession()->isLogingOut() || player->IsDuringRemoveFromWorld()) {
+    // if (!(sPlayerbotAIConfig->enabled) || !player)
+    // {
     //     return nullptr;
     // }
-    auto itr = _playerbotsAIMap.find(player->GetGUID());
-    if (itr != _playerbotsAIMap.end())
-    {
-        if (itr->second->IsBotAI())
-            return reinterpret_cast<PlayerbotAI*>(itr->second);
+    // // if (player->GetSession()->isLogingOut() || player->IsDuringRemoveFromWorld()) {
+    // //     return nullptr;
+    // // }
+    // auto itr = _playerbotsAIMap.find(player->GetGUID());
+    // if (itr != _playerbotsAIMap.end())
+    // {
+    //     if (itr->second->IsBotAI())
+    //         return reinterpret_cast<PlayerbotAI*>(itr->second);
+    // }
+	// 
+    // return nullptr;
+	
+	// removes a long-standing crash (0xC0000005 ACCESS_VIOLATION)
+    if (!player || !sPlayerbotAIConfig->enabled)
+        return nullptr;
+    
+    // First read the GUID into a local variable, but ONLY after the check!
+    ObjectGuid guid = player->GetGUID();           // <-- OK here, we know that player != nullptr
+    { 
+        std::shared_lock rlock(_aiMutex);
+        auto it = _playerbotsAIMap.find(guid);
+        if (it != _playerbotsAIMap.end() && it->second->IsBotAI())
+            return static_cast<PlayerbotAI*>(it->second);
     }
 
+    // Transient state: NEVER break the master ⇄ bots relationship here.
+    if (!ObjectAccessor::FindPlayer(guid))    
+    {
+        RemovePlayerbotAI(guid, /*removeMgrEntry=*/false);
+    }
     return nullptr;
 }
 
+// removes a long-standing crash (0xC0000005 ACCESS_VIOLATION)
+PlayerbotAI* PlayerbotsMgr::GetPlayerbotAIByGuid(ObjectGuid guid)
+{
+    if (!sPlayerbotAIConfig->enabled)
+        return nullptr;
+
+    std::shared_lock rlock(_aiMutex);
+    auto it = _playerbotsAIMap.find(guid);
+    if (it != _playerbotsAIMap.end() && it->second->IsBotAI())
+        return static_cast<PlayerbotAI*>(it->second);
+    return nullptr;
+}
+
+void PlayerbotsMgr::RemovePlayerbotAI(ObjectGuid const& guid, bool removeMgrEntry /*= true*/)
+{
+    std::unique_lock wlock(_aiMutex);
+
+    if (auto it = _playerbotsAIMap.find(guid); it != _playerbotsAIMap.end())
+    {
+        delete it->second;
+        _playerbotsAIMap.erase(it);
+        LOG_DEBUG("mod-playerbots", "Removed stale AI for GUID {}",
+                  static_cast<uint64>(guid.GetRawValue()));
+    }
+
+        if (removeMgrEntry)
+       _playerbotsMgrMap.erase(guid);  // we NO longer touch the relation in a "soft" purge
+}
+
 PlayerbotMgr* PlayerbotsMgr::GetPlayerbotMgr(Player* player)
 {
     if (!(sPlayerbotAIConfig->enabled) || !player)

src/PlayerbotMgr.h

@@ -12,6 +12,7 @@
 #include "PlayerbotAIBase.h"
 #include "QueryHolder.h"
 #include "QueryResult.h"
+#include <shared_mutex>                 // removes a long-standing crash (0xC0000005 ACCESS_VIOLATION)
 
 class ChatHandler;
 class PlayerbotAI;
@@ -114,13 +115,38 @@ public:
     void RemovePlayerBotData(ObjectGuid const& guid, bool is_AI);
 
     PlayerbotAI* GetPlayerbotAI(Player* player);
+    PlayerbotAI* GetPlayerbotAIByGuid(ObjectGuid guid);  // removes a long-standing crash (0xC0000005 ACCESS_VIOLATION)
+    // void RemovePlayerbotAI(ObjectGuid const& guid);   // removes a long-standing crash (0xC0000005 ACCESS_VIOLATION)
+    // removeMgrEntry = true  => "hard" purge (AI + manager relation), for real logouts
+    // removeMgrEntry = false => "soft" purge (AI only), for detected "stale" cases
+    void RemovePlayerbotAI(ObjectGuid const& guid, bool removeMgrEntry = true);
     PlayerbotMgr* GetPlayerbotMgr(Player* player);
 
 private:
     std::unordered_map<ObjectGuid, PlayerbotAIBase*> _playerbotsAIMap;
     std::unordered_map<ObjectGuid, PlayerbotAIBase*> _playerbotsMgrMap;
+    mutable std::shared_mutex _aiMutex;   // removes a long-standing crash (0xC0000005 ACCESS_VIOLATION)
 };
 
 #define sPlayerbotsMgr PlayerbotsMgr::instance()
 
+// Temporary addition If it keeps crashing, we will use them.
+// Like
+// BEFORE : PlayerbotAI* botAI = GET_PLAYERBOT_AI(bot);
+// AFTER (safe) : PlayerbotAI* botAI = GET_PLAYERBOT_AI_SAFE(bot);
+// BEFORE : if (PlayerbotAI* botAI = GET_PLAYERBOT_AI(player)) { ... }
+// AFTER (safe) : if (PlayerbotAI* botAI = GET_PLAYERBOT_AI_SAFE(player)) { ... }
+// --- SAFE helpers (append to PlayerbotMgr.h) ---
+inline PlayerbotAI* GET_PLAYERBOT_AI_SAFE(Player* p)
+{
+    // Avoid any dereference during transient states (nullptr, teleport, flight, etc.)
+    return p ? sPlayerbotsMgr->GetPlayerbotAI(p) : nullptr;
+}
+
+inline PlayerbotMgr* GET_PLAYERBOT_MGR_SAFE(Player* p)
+{
+    return p ? sPlayerbotsMgr->GetPlayerbotMgr(p) : nullptr;
+}
+// --- end SAFE helpers ---
+
 #endif

src/Playerbots.cpp

@@ -30,6 +30,7 @@
 #include "cs_playerbots.h"
 #include "cmath"
 #include "BattleGroundTactics.h"
+#include "ObjectAccessor.h"
 
 class PlayerbotsDatabaseScript : public DatabaseScript
 {
@@ -108,7 +109,7 @@ public:
                     "|cffcccccchttps://github.com/liyunfan1223/mod-playerbots|r");
             }
 
-            if (sPlayerbotAIConfig->enabled || sPlayerbotAIConfig->randomBotAutologin)
+            /*if (sPlayerbotAIConfig->enabled || sPlayerbotAIConfig->randomBotAutologin)
             {
                 std::string roundedTime =
                     std::to_string(std::ceil((sPlayerbotAIConfig->maxRandomBots * 0.11 / 60) * 10) / 10.0);
@@ -117,7 +118,7 @@ public:
                 ChatHandler(player->GetSession()).SendSysMessage(
                     "|cff00ff00Playerbots:|r bot initialization at server startup takes about '" 
                     + roundedTime + "' minutes.");
-            }
+            }*/
         }
     }
 
@@ -136,7 +137,7 @@ public:
 
     bool OnPlayerCanUseChat(Player* player, uint32 type, uint32 /*lang*/, std::string& msg, Player* receiver) override
     {
-        if (type == CHAT_MSG_WHISPER)
+        /*if (type == CHAT_MSG_WHISPER)
         {
             if (PlayerbotAI* botAI = GET_PLAYERBOT_AI(receiver))
             {
@@ -144,14 +145,23 @@ public:
 
                 return false;
             }
-        }
+        }*/
+		
+       if (type == CHAT_MSG_WHISPER && receiver) // [Crash Fix] Add non-null receiver check to avoid calling on a null pointer in edge cases.
+       {
+           if (PlayerbotAI* botAI = GET_PLAYERBOT_AI(receiver))
+           {
+               botAI->HandleCommand(type, msg, player);
+               return false;
+           }
+       }
 
         return true;
     }
 
     void OnPlayerChat(Player* player, uint32 type, uint32 /*lang*/, std::string& msg, Group* group) override
     {
-        for (GroupReference* itr = group->GetFirstMember(); itr != nullptr; itr = itr->next())
+        /*for (GroupReference* itr = group->GetFirstMember(); itr != nullptr; itr = itr->next())
         {
             if (Player* member = itr->GetSource())
             {
@@ -160,6 +170,18 @@ public:
                     botAI->HandleCommand(type, msg, player);
                 }
             }
+        }*/
+		if (!group) return; // [Crash Fix] 'group' should not be null in this hook, but this safeguard prevents a crash if the caller changes or in case of an unexpected call.
+
+        for (GroupReference* itr = group->GetFirstMember(); itr != nullptr; itr = itr->next())
+        {
+            Player* member = itr->GetSource();
+            if (!member) continue;
+        
+            if (PlayerbotAI* botAI = GET_PLAYERBOT_AI(member))
+            {
+                botAI->HandleCommand(type, msg, player);
+            }
         }
     }
 
@@ -176,7 +198,9 @@ public:
                     {
                         if (bot->GetGuildId() == player->GetGuildId())
                         {
-                            GET_PLAYERBOT_AI(bot)->HandleCommand(type, msg, player);
+                            // GET_PLAYERBOT_AI(bot)->HandleCommand(type, msg, player);
+							if (PlayerbotAI* ai = GET_PLAYERBOT_AI(bot))  // [Crash Fix] Possible crash source because we don't check if the returned pointer is not null
+                                ai->HandleCommand(type, msg, player);
                         }
                     }
                 }
@@ -311,7 +335,7 @@ class PlayerbotsScript : public PlayerbotScript
 public:
     PlayerbotsScript() : PlayerbotScript("PlayerbotsScript") {}
 
-    bool OnPlayerbotCheckLFGQueue(lfg::Lfg5Guids const& guidsList) override
+    /*bool OnPlayerbotCheckLFGQueue(lfg::Lfg5Guids const& guidsList) override
     {
         bool nonBotFound = false;
         for (ObjectGuid const& guid : guidsList.guids)
@@ -325,7 +349,137 @@ public:
         }
 
         return nonBotFound;
+    }*/
+
+    // New LFG Function
+    bool OnPlayerbotCheckLFGQueue(lfg::Lfg5Guids const& guidsList)
+    {
+        const size_t totalSlots = guidsList.guids.size();
+        size_t ignoredEmpty = 0, ignoredNonPlayer = 0;
+        size_t offlinePlayers = 0, botPlayers = 0, realPlayers = 0;
+        bool groupGuidSeen = false;
+
+        LOG_DEBUG("playerbots", "[LFG] check start: slots={}", totalSlots);
+
+        for (size_t i = 0; i < totalSlots; ++i)
+        {
+            ObjectGuid const& guid = guidsList.guids[i];
+
+            // 1) Placeholders to ignore
+            if (guid.IsEmpty())
+            {
+                ++ignoredEmpty;
+                LOG_DEBUG("playerbots", "[LFG] slot {}: <empty> -> ignored", i);
+                continue;
+            }
+
+            // Group GUID: in the original implementation this counted as "non-bot found"
+            if (guid.IsGroup())
+            {
+                groupGuidSeen = true;
+                LOG_DEBUG("playerbots", "[LFG] slot {}: <GROUP GUID> -> counts as having a real player (compat)", i);
+                continue;
+            }
+
+            // Other non-Player GUIDs: various placeholders, ignore them
+            if (!guid.IsPlayer())
+            {
+                ++ignoredNonPlayer;
+                LOG_DEBUG("playerbots", "[LFG] slot {}: guid={} (non-player/high={}) -> ignored", i,
+                          static_cast<uint64>(guid.GetRawValue()), (unsigned)guid.GetHigh());
+                continue;
+            }
+
+            // 2) Player present?
+            Player* player = ObjectAccessor::FindPlayer(guid);
+            if (!player)
+            {
+                ++offlinePlayers;
+                LOG_DEBUG("playerbots", "[LFG] slot {}: player guid={} is offline/not in world", i,
+                          static_cast<uint64>(guid.GetRawValue()));
+                continue;
+            }
+
+            // 3) Bot or real player?
+            if (GET_PLAYERBOT_AI(player) != nullptr)
+            {
+                ++botPlayers;
+                LOG_DEBUG("playerbots", "[LFG] slot {}: BOT {} (lvl {}, class {})", i, player->GetName().c_str(),
+                          player->GetLevel(), player->getClass());
+            }
+            else
+            {
+                ++realPlayers;
+                LOG_DEBUG("playerbots", "[LFG] slot {}: REAL {} (lvl {}, class {})", i, player->GetName().c_str(),
+                          player->GetLevel(), player->getClass());
+            }
+        }
+
+        // "Ultra-early phase" detection: only placeholders => DO NOT VETO
+        const bool onlyPlaceholders = (realPlayers + botPlayers + (groupGuidSeen ? 1 : 0)) == 0 &&
+                                      (ignoredEmpty + ignoredNonPlayer) == totalSlots;
+
+        // "Soft" LFG preflight if we actually see players AND at least one offline
+        if (!onlyPlaceholders && offlinePlayers > 0)
+        {
+            // Find a plausible leader: prefer a real online player, otherwise any online player
+            Player* leader = nullptr;
+
+            for (ObjectGuid const& guid : guidsList.guids)
+                if (guid.IsPlayer())
+                    if (Player* p = ObjectAccessor::FindPlayer(guid))
+                        if (GET_PLAYERBOT_AI(p) == nullptr)
+                        {
+                            leader = p;
+                            break;
+                        }
+
+            if (!leader)
+                for (ObjectGuid const& guid : guidsList.guids)
+                    if (guid.IsPlayer())
+                        if (Player* p = ObjectAccessor::FindPlayer(guid))
+                        {
+                            leader = p;
+                            break;
+                        }
+
+            if (leader)
+            {
+                Group* g = leader->GetGroup();
+                if (g)
+                {
+                    LOG_DEBUG("playerbots", "[LFG-RESET] group members={}, isRaid={}, isLFGGroup={}",
+                              (int)g->GetMembersCount(), g->isRaidGroup() ? 1 : 0, g->isLFGGroup() ? 1 : 0);
+
+                    // "Soft" reset of LFG states on the bots' AI side (proposal/role-check, etc.)
+                    for (GroupReference* ref = g->GetFirstMember(); ref; ref = ref->next())
+                    {
+                        Player* member = ref->GetSource();
+                        if (!member)
+                            continue;
+
+                        if (PlayerbotAI* ai = GET_PLAYERBOT_AI(member))
+                            ai->Reset(true);
+                    }
+                }
+            }
+
+            LOG_DEBUG("playerbots", "[LFG] preflight soft-reset triggered (offline detected) -> allowQueue=no (retry)");
+            return false;  // ask the client to retry right after the reset
+        }
+
+        // "Hybrid" policy: permissive if only placeholders; otherwise original logic
+        bool allowQueue = onlyPlaceholders ? true : ((offlinePlayers == 0) && (realPlayers >= 1 || groupGuidSeen));
+
+        LOG_DEBUG("playerbots",
+                  "[LFG] summary: slots={}, real={}, bots={}, offline={}, ignored(empty+nonPlayer)={}, "
+                  "groupGuidSeen={} -> allowQueue={}",
+                  totalSlots, realPlayers, botPlayers, offlinePlayers, (ignoredEmpty + ignoredNonPlayer),
+                  (groupGuidSeen ? "yes" : "no"), (allowQueue ? "yes" : "no"));
+
+        return allowQueue;
     }
+    // End LFG
 
     void OnPlayerbotCheckKillTask(Player* player, Unit* victim) override
     {
@@ -377,6 +531,10 @@ public:
 
     void OnPlayerbotLogout(Player* player) override
     {
+        // immediate purge of the bot's AI upon disconnection
+        if (player && player->GetSession()->IsBot())
+            sPlayerbotsMgr->RemovePlayerbotAI(player->GetGUID()); // removes a long-standing crash (0xC0000005 ACCESS_VIOLATION)
+    
         if (PlayerbotMgr* playerbotMgr = GET_PLAYERBOT_MGR(player))
         {
             PlayerbotAI* botAI = GET_PLAYERBOT_AI(player);

src/RandomPlayerbotMgr.cpp

@@ -994,9 +994,18 @@ void RandomPlayerbotMgr::CheckBgQueue()
                     isRated = ginfo.IsRated;
                 }
 
-                if (bgQueue.IsPlayerInvitedToRatedArena(player->GetGUID()) ||
+                /*if (bgQueue.IsPlayerInvitedToRatedArena(player->GetGUID()) ||
                     (player->InArena() && player->GetBattleground()->isRated()))
+                    isRated = true;*/
+                if (bgQueue.IsPlayerInvitedToRatedArena(player->GetGUID())) // [Crash Fix] Issue Crash in RandomPlayerbotMgr:1018 #1528
+                {
                     isRated = true;
+                }
+                else if (Battleground const* bg = player->GetBattleground())
+                {
+                    if (player->InArena() && bg->isRated())
+                        isRated = true;
+                }
 
                 if (isRated)
                     BattlegroundData[queueTypeId][bracketId].ratedArenaPlayerCount++;
@@ -1011,15 +1020,24 @@ void RandomPlayerbotMgr::CheckBgQueue()
                 else
                     BattlegroundData[queueTypeId][bracketId].bgHordePlayerCount++;
 
-                // If a player has joined the BG, update the instance count in BattlegroundData (for consistency)
+                /*// If a player has joined the BG, update the instance count in BattlegroundData (for consistency)
                 if (player->InBattleground())
                 {
                     std::vector<uint32>* instanceIds = nullptr;
                     uint32 instanceId = player->GetBattleground()->GetInstanceID();
 
-                    instanceIds = &BattlegroundData[queueTypeId][bracketId].bgInstances;
-                    if (instanceIds &&
+                    instanceIds = &BattlegroundData[queueTypeId][bracketId].bgInstances;*/
+                // If a player has joined the BG, update the instance count in BattlegroundData (for consistency)
+                if (Battleground const* bg = player->GetBattleground()) // [Crash Fix] Issue Crash in RandomPlayerbotMgr:1018 #1528
+                {
+                    std::vector<uint32>* instanceIds = nullptr;
+                    uint32 instanceId = bg->GetInstanceID();
+
+                    instanceIds = &BattlegroundData[queueTypeId][bracketId].bgInstances;					
+                   
+				   if (instanceIds &&
                         std::find(instanceIds->begin(), instanceIds->end(), instanceId) == instanceIds->end())
+						
                         instanceIds->push_back(instanceId);
 
                     BattlegroundData[queueTypeId][bracketId].bgInstanceCount = instanceIds->size();
@@ -1082,10 +1100,20 @@ void RandomPlayerbotMgr::CheckBgQueue()
                     isRated = ginfo.IsRated;
                 }
 
-                if (bgQueue.IsPlayerInvitedToRatedArena(guid) || (bot->InArena() && bot->GetBattleground()->isRated()))
+                /*if (bgQueue.IsPlayerInvitedToRatedArena(guid) || (bot->InArena() && bot->GetBattleground()->isRated()))
+                    isRated = true;*/
+				if (bgQueue.IsPlayerInvitedToRatedArena(guid)) // [Crash Fix] Issue Crash in RandomPlayerbotMgr:1018 #1528
+                {
                     isRated = true;
-
-                if (isRated)
+                }
+                else if (Battleground const* bg = bot->GetBattleground())
+                {
+                    if (bot->InArena() && bg->isRated())
+                        isRated = true;
+                }
+                // END [Crash Fix] Issue Crash in RandomPlayerbotMgr:1018 #1528
+                
+				if (isRated)
                     BattlegroundData[queueTypeId][bracketId].ratedArenaBotCount++;
                 else
                     BattlegroundData[queueTypeId][bracketId].skirmishArenaBotCount++;
@@ -1098,10 +1126,15 @@ void RandomPlayerbotMgr::CheckBgQueue()
                     BattlegroundData[queueTypeId][bracketId].bgHordeBotCount++;
             }
 
-            if (bot->InBattleground())
+            /*if (bot->InBattleground())
             {
                 std::vector<uint32>* instanceIds = nullptr;
-                uint32 instanceId = bot->GetBattleground()->GetInstanceID();
+                uint32 instanceId = bot->GetBattleground()->GetInstanceID();*/
+            if (Battleground const* bg = bot->GetBattleground()) // [Crash Fix] Issue Crash in RandomPlayerbotMgr:1018 #1528
+            {
+                std::vector<uint32>* instanceIds = nullptr;
+                uint32 instanceId = bg->GetInstanceID();
+                //END  [Crash Fix] Issue Crash in RandomPlayerbotMgr:1018 #1528				
                 bool isArena = false;
                 bool isRated = false;
 
@@ -1109,7 +1142,8 @@ void RandomPlayerbotMgr::CheckBgQueue()
                 if (bot->InArena())
                 {
                     isArena = true;
-                    if (bot->GetBattleground()->isRated())
+                    // if (bot->GetBattleground()->isRated())
+					if (bg->isRated())	// [Crash Fix] Issue Crash in RandomPlayerbotMgr:1018 #1528
                     {
                         isRated = true;
                         instanceIds = &BattlegroundData[queueTypeId][bracketId].ratedArenaInstances;
@@ -1725,7 +1759,11 @@ void RandomPlayerbotMgr::RandomTeleport(Player* bot, std::vector<WorldLocation>&
         }
 
         // Prevent blink to be detected by visible real players
-        if (botAI->HasPlayerNearby(150.0f))
+        /*if (botAI->HasPlayerNearby(150.0f))
+        {
+            break;
+        }*/
+        if (botAI && botAI->HasPlayerNearby(150.0f)) // [Crash fix] 'botAI' can be null earlier in the function.
         {
             break;
         }
@@ -2180,7 +2218,7 @@ void RandomPlayerbotMgr::RandomTeleport(Player* bot)
     float range = sPlayerbotAIConfig->randomBotTeleportDistance;
     Acore::AnyUnitInObjectRangeCheck u_check(bot, range);
     Acore::UnitListSearcher<Acore::AnyUnitInObjectRangeCheck> searcher(bot, targets, u_check);
-    Cell::VisitAllObjects(bot, searcher, range);
+    Cell::VisitObjects(bot, searcher, range);
 
     if (!targets.empty())
     {
@@ -2333,8 +2371,10 @@ void RandomPlayerbotMgr::RandomizeFirst(Player* bot)
     PlayerbotsDatabase.Execute(stmt);
 
     // teleport to a random inn for bot level
-    if (GET_PLAYERBOT_AI(bot))
-        GET_PLAYERBOT_AI(bot)->Reset(true);
+    /*if (GET_PLAYERBOT_AI(bot))
+        GET_PLAYERBOT_AI(bot)->Reset(true);*/
+    if (auto* ai = GET_PLAYERBOT_AI(bot)) // [Crash fix] Avoid 2 calls to GET_PLAYERBOT_AI and protect the dereference.
+        ai->Reset(true);
 
     if (bot->GetGroup())
         bot->RemoveFromGroup();
@@ -2374,8 +2414,10 @@ void RandomPlayerbotMgr::RandomizeMin(Player* bot)
     PlayerbotsDatabase.Execute(stmt);
 
     // teleport to a random inn for bot level
-    if (GET_PLAYERBOT_AI(bot))
-        GET_PLAYERBOT_AI(bot)->Reset(true);
+    /*if (GET_PLAYERBOT_AI(bot))
+        GET_PLAYERBOT_AI(bot)->Reset(true);*/
+	if (auto* ai = GET_PLAYERBOT_AI(bot)) // [Crash fix] Avoid 2 calls to GET_PLAYERBOT_AI and protect the dereference.
+    ai->Reset(true);
 
     if (bot->GetGroup())
         bot->RemoveFromGroup();
@@ -2468,7 +2510,7 @@ void RandomPlayerbotMgr::Refresh(Player* bot)
 
 bool RandomPlayerbotMgr::IsRandomBot(Player* bot)
 {
-    if (bot && GET_PLAYERBOT_AI(bot))
+    /*if (bot && GET_PLAYERBOT_AI(bot))
     {
         if (GET_PLAYERBOT_AI(bot)->IsRealPlayer())
             return false;
@@ -2478,6 +2520,17 @@ bool RandomPlayerbotMgr::IsRandomBot(Player* bot)
         return IsRandomBot(bot->GetGUID().GetCounter());
     }
 
+    return false;*/
+
+    if (bot) // [Tidy] Single AI acquisition + same logic.
+    {
+        if (auto* ai = GET_PLAYERBOT_AI(bot))
+        {
+            if (ai->IsRealPlayer())
+                return false;
+        }
+        return IsRandomBot(bot->GetGUID().GetCounter());
+    }
     return false;
 }
 
@@ -2495,7 +2548,7 @@ bool RandomPlayerbotMgr::IsRandomBot(ObjectGuid::LowType bot)
 
 bool RandomPlayerbotMgr::IsAddclassBot(Player* bot)
 {
-    if (bot && GET_PLAYERBOT_AI(bot))
+    /*if (bot && GET_PLAYERBOT_AI(bot))
     {
         if (GET_PLAYERBOT_AI(bot)->IsRealPlayer())
             return false;
@@ -2505,6 +2558,17 @@ bool RandomPlayerbotMgr::IsAddclassBot(Player* bot)
         return IsAddclassBot(bot->GetGUID().GetCounter());
     }
 
+    return false;*/
+
+    if (bot) // [Tidy] Single AI acquisition + same logic.
+    {
+        if (auto* ai = GET_PLAYERBOT_AI(bot))
+        {
+            if (ai->IsRealPlayer())
+                return false;
+        }
+        return IsAddclassBot(bot->GetGUID().GetCounter());
+    }
     return false;
 }
 
@@ -2844,8 +2908,9 @@ void RandomPlayerbotMgr::HandleCommand(uint32 type, std::string const text, Play
                     continue;
             }
         }
-
-        GET_PLAYERBOT_AI(bot)->HandleCommand(type, text, fromPlayer);
+        // GET_PLAYERBOT_AI(bot)->HandleCommand(type, text, fromPlayer); // Possible crash source because we don't check if the returned pointer is not null
+        if (auto* ai = GET_PLAYERBOT_AI(bot)) // [Crash fix] Protect the call on a null AI (World/General chat path).
+            ai->HandleCommand(type, text, fromPlayer);
     }
 }
 
@@ -2918,7 +2983,7 @@ void RandomPlayerbotMgr::OnPlayerLogin(Player* player)
         for (GroupReference* gref = group->GetFirstMember(); gref; gref = gref->next())
         {
             Player* member = gref->GetSource();
-            PlayerbotAI* botAI = GET_PLAYERBOT_AI(bot);
+            /*PlayerbotAI* botAI = GET_PLAYERBOT_AI(bot);
             if (botAI && member == player && (!botAI->GetMaster() || GET_PLAYERBOT_AI(botAI->GetMaster())))
             {
                 if (!bot->InBattleground())
@@ -2929,6 +2994,20 @@ void RandomPlayerbotMgr::OnPlayerLogin(Player* player)
                 }
 
                 break;
+            }*/
+			if (auto* botAI = GET_PLAYERBOT_AI(bot)) // [Tidy] Avoid GET_PLAYERBOT_AI(...) on a potentially null master.
+            {
+                Player* master = botAI->GetMaster();
+                if (member == player && (!master || GET_PLAYERBOT_AI(master)))
+                {
+                    if (!bot->InBattleground())
+                    {
+                        botAI->SetMaster(player);
+                        botAI->ResetStrategies();
+                        botAI->TellMaster("Hello");
+                    }
+                    break;
+                }
             }
         }
     }
@@ -3067,13 +3146,29 @@ void RandomPlayerbotMgr::PrintStats()
         lvlPerClass[bot->getClass()] += bot->GetLevel();
         lvlPerRace[bot->getRace()] += bot->GetLevel();
 
-        PlayerbotAI* botAI = GET_PLAYERBOT_AI(bot);
+        /*PlayerbotAI* botAI = GET_PLAYERBOT_AI(bot);
         if (botAI->AllowActivity())
             ++active;
 
         if (botAI->GetAiObjectContext()->GetValue<bool>("random bot update")->Get())
-            ++update;
-
+            ++update;*/
+		
+        PlayerbotAI* botAI = GET_PLAYERBOT_AI(bot); // [Crash fix] Declare botAI in the loop scope and exit early if null,
+        if (!botAI)
+            continue;  // real player / no AI → ignore this bot for stats
+        
+        if (botAI->AllowActivity())
+            ++active;
+        
+        // Secure access to the context and the value
+        if (AiObjectContext* ctx = botAI->GetAiObjectContext())
+        {
+            if (auto* v = ctx->GetValue<bool>("random bot update"))
+                if (v->Get())
+                    ++update;
+        } 
+        // End CrashFix
+		
         uint32 botId = bot->GetGUID().GetCounter();
         if (!GetEventValue(botId, "randomize"))
             ++randomize;

src/TravelMgr.cpp

@@ -1227,7 +1227,7 @@ std::string const QuestObjectiveTravelDestination::getTitle()
     return out.str();
 }
 
-bool RpgTravelDestination::isActive(Player* bot)
+/*bool RpgTravelDestination::isActive(Player* bot) // Old Code
 {
     PlayerbotAI* botAI = GET_PLAYERBOT_AI(bot);
     AiObjectContext* context = botAI->GetAiObjectContext();
@@ -1264,6 +1264,62 @@ bool RpgTravelDestination::isActive(Player* bot)
     ReputationRank reaction = bot->GetReputationRank(factionEntry->faction);
 
     return reaction > REP_NEUTRAL;
+}*/
+
+bool RpgTravelDestination::isActive(Player* bot)
+{
+    // [Crash fix] Never dereference the AI if the player is real (null AI).
+    if (!bot)
+        return false;
+
+    PlayerbotAI* botAI = GET_PLAYERBOT_AI(bot);
+    if (!botAI)
+        return false; // real player (no AI) => inactive destination
+
+    AiObjectContext* context = botAI->GetAiObjectContext();
+    if (!context)
+        return false;
+
+    CreatureTemplate const* cInfo = GetCreatureTemplate();
+    if (!cInfo)
+        return false;
+
+    bool isUsefull = false;
+
+    if (cInfo->npcflag & UNIT_NPC_FLAG_VENDOR)
+        if (AI_VALUE2_LAZY(bool, "group or", "should sell,can sell,following party,near leader"))
+            isUsefull = true;
+
+    if (cInfo->npcflag & UNIT_NPC_FLAG_REPAIR)
+        if (AI_VALUE2_LAZY(bool, "group or", "should repair,can repair,following party,near leader"))
+            isUsefull = true;
+
+    if (!isUsefull)
+        return false;
+
+    // [Crash fix] Read the ignore list via 'context' and check that the Value exists
+    GuidSet const* ignoreList = nullptr;
+    if (auto* value = context->GetValue<GuidSet&>("ignore rpg target"))
+        ignoreList = &value->Get();
+
+    if (ignoreList)
+    {
+        for (ObjectGuid const& guid : *ignoreList)
+        {
+            if (guid.GetEntry() == getEntry())
+                return false;
+        }
+    }
+
+    // Secure access to the faction template
+    if (FactionTemplateEntry const* factionEntry = sFactionTemplateStore.LookupEntry(cInfo->faction))
+    {
+        ReputationRank reaction = bot->GetReputationRank(factionEntry->faction);
+        return reaction > REP_NEUTRAL;
+    }
+
+    // As a precaution, if the faction is not found, consider inactive
+    return false;
 }
 
 CreatureTemplate const* RpgTravelDestination::GetCreatureTemplate() { return sObjectMgr->GetCreatureTemplate(entry); }

src/factory/PlayerbotFactory.cpp

@@ -164,15 +164,16 @@ void PlayerbotFactory::Init()
         {
             continue;
         }
+        
         ItemTemplate const* proto = sObjectMgr->GetItemTemplate(gemId);
+        if (proto) {
+            if (proto->ItemLevel < 60)
+                continue;
 
-        if (proto->ItemLevel < 60)
-            continue;
-
-        if (proto->Flags & ITEM_FLAG_UNIQUE_EQUIPPABLE)
-        {
-            continue;
+            if (proto->Flags & ITEM_FLAG_UNIQUE_EQUIPPABLE)
+               continue;
         }
+        
         if (sRandomItemMgr->IsTestItem(gemId))
             continue;
 
@@ -180,9 +181,11 @@ void PlayerbotFactory::Init()
         {
             continue;
         }
+        
         // LOG_INFO("playerbots", "Add {} to enchantment gems", gemId);
         enchantGemIdCache.push_back(gemId);
     }
+    
     LOG_INFO("playerbots", "Loading {} enchantment gems", enchantGemIdCache.size());
 }
 
@@ -1017,14 +1020,16 @@ void PlayerbotFactory::ClearSkills()
     }
     bot->SetUInt32Value(PLAYER_SKILL_INDEX(0), 0);
     bot->SetUInt32Value(PLAYER_SKILL_INDEX(1), 0);
+
     // unlearn default race/class skills
-    PlayerInfo const* info = sObjectMgr->GetPlayerInfo(bot->getRace(), bot->getClass());
-    for (PlayerCreateInfoSkills::const_iterator itr = info->skills.begin(); itr != info->skills.end(); ++itr)
-    {
-        uint32 skillId = itr->SkillId;
-        if (!bot->HasSkill(skillId))
-            continue;
-        bot->SetSkill(skillId, 0, 0, 0);
+    if (PlayerInfo const* info = sObjectMgr->GetPlayerInfo(bot->getRace(), bot->getClass())) {
+        for (PlayerCreateInfoSkills::const_iterator itr = info->skills.begin(); itr != info->skills.end(); ++itr)
+        {
+            uint32 skillId = itr->SkillId;
+            if (!bot->HasSkill(skillId))
+                continue;
+            bot->SetSkill(skillId, 0, 0, 0);
+        }
     }
 }
 

src/strategy/actions/AttackAction.cpp

@@ -59,10 +59,7 @@ bool AttackAction::Attack(Unit* target, bool with_pet /*true*/)
     bool sameTarget = oldTarget == target && bot->GetVictim() == target;
     bool inCombat = botAI->GetState() == BOT_STATE_COMBAT;
     bool sameAttackMode = bot->HasUnitState(UNIT_STATE_MELEE_ATTACKING) == shouldMelee;
-    // there's no reason to do attack again
-    if (sameTarget && inCombat && sameAttackMode)
-        return false;
-    
+  
     if (bot->GetMotionMaster()->GetCurrentMovementGeneratorType() == FLIGHT_MOTION_TYPE ||
         bot->HasUnitState(UNIT_STATE_IN_FLIGHT))
     {
@@ -82,52 +79,53 @@ bool AttackAction::Attack(Unit* target, bool with_pet /*true*/)
 
     if (!target->IsInWorld())
     {
+        if (verbose)
+            botAI->TellError(std::string(target->GetName()) + " is no longer in the world.");
+        return false;
+    }
+
+   if ((sPlayerbotAIConfig->IsInPvpProhibitedZone(bot->GetZoneId()) || 
+     sPlayerbotAIConfig->IsInPvpProhibitedArea(bot->GetAreaId()))
+        && (target->IsPlayer() || target->IsPet()))
+    {
+        if (verbose)
+            botAI->TellError("I cannot attack other players in PvP prohibited areas.");
+
+        return false;
+    }
+
+    if (bot->IsFriendlyTo(target))
+    {
+        if (verbose)
+            botAI->TellError(std::string(target->GetName()) + " is friendly to me.");
+        return false;
+    }
+
+    if (target->isDead())
+    {
+        if (verbose)
+            botAI->TellError(std::string(target->GetName()) + " is dead.");
+        return false;
+    }
+
+    if (!bot->IsWithinLOSInMap(target))
+    {
+        if (verbose)
+            botAI->TellError(std::string(target->GetName()) + " is not in my sight.");
+        return false;
+    }
+
+    if (sameTarget && inCombat && sameAttackMode)
+    {
+        if (verbose)
+            botAI->TellError("I am already attacking " + std::string(target->GetName()) + ".");
         return false;
     }
 
     if (!bot->IsValidAttackTarget(target))
     {
         if (verbose)
-            botAI->TellError("I cannot attack an invalid target");
-
-        return false;
-    }
-
-    std::ostringstream msg;
-    msg << target->GetName();
-
-    if (bot->IsFriendlyTo(target))
-    {
-        msg << " is friendly to me";
-        if (verbose)
-            botAI->TellError(msg.str());
-
-        return false;
-    }
-
-    if (!bot->IsWithinLOSInMap(target))
-    {
-        msg << " is not in my sight";
-        if (verbose)
-            botAI->TellError(msg.str());
-        
-        return false;
-    }
-
-    if (target->isDead())
-    {
-        msg << " is dead";
-        if (verbose)
-            botAI->TellError(msg.str());
-
-        return false;
-    }
-
-    if (sPlayerbotAIConfig->IsInPvpProhibitedZone(bot->GetZoneId())
-        && (target->IsPlayer() || target->IsPet()))
-    {
-        if (verbose)
-            botAI->TellError("I cannot attack others in PvP prohibited zones");
+            botAI->TellError("I cannot attack an invalid target.");
 
         return false;
     }
@@ -141,9 +139,7 @@ bool AttackAction::Attack(Unit* target, bool with_pet /*true*/)
     ObjectGuid guid = target->GetGUID();
     bot->SetSelection(target->GetGUID());
 
-    
-
-    context->GetValue<Unit*>("old target")->Set(oldTarget);
+        context->GetValue<Unit*>("old target")->Set(oldTarget);
 
     context->GetValue<Unit*>("current target")->Set(target);
     context->GetValue<LootObjectStack*>("available loot")->Get()->Add(guid);
@@ -157,7 +153,6 @@ bool AttackAction::Attack(Unit* target, bool with_pet /*true*/)
         bot->StopMoving();
     }
 
-
     if (IsMovingAllowed() && !bot->HasInArc(CAST_ANGLE_IN_FRONT, target))
     {
         sServerFacade->SetFacingTo(bot, target);

src/strategy/actions/MoveToTravelTargetAction.cpp

@@ -18,7 +18,7 @@ bool MoveToTravelTargetAction::Execute(Event event)
     WorldLocation location = *target->getPosition();
 
     Group* group = bot->GetGroup();
-    if (group && !urand(0, 1) && bot == botAI->GetGroupMaster())
+    if (group && !urand(0, 1) && bot == botAI->GetGroupMaster() && !bot->IsInCombat())
     {
         for (GroupReference* ref = group->GetFirstMember(); ref; ref = ref->next())
         {

src/strategy/actions/RevealGatheringItemAction.cpp

@@ -39,7 +39,7 @@ bool RevealGatheringItemAction::Execute(Event event)
     std::list<GameObject*> targets;
     AnyGameObjectInObjectRangeCheck u_check(bot, sPlayerbotAIConfig->grindDistance);
     Acore::GameObjectListSearcher<AnyGameObjectInObjectRangeCheck> searcher(bot, targets, u_check);
-    Cell::VisitAllObjects(bot, searcher, sPlayerbotAIConfig->reactDistance);
+    Cell::VisitObjects(bot, searcher, sPlayerbotAIConfig->reactDistance);
 
     std::vector<GameObject*> result;
     for (GameObject* go : targets)

src/strategy/actions/TravelAction.cpp

@@ -23,7 +23,7 @@ bool TravelAction::Execute(Event event)
     std::list<Unit*> targets;
     Acore::AnyUnitInObjectRangeCheck u_check(bot, sPlayerbotAIConfig->sightDistance * 2);
     Acore::UnitListSearcher<Acore::AnyUnitInObjectRangeCheck> searcher(bot, targets, u_check);
-    Cell::VisitAllObjects(bot, searcher, sPlayerbotAIConfig->sightDistance);
+    Cell::VisitObjects(bot, searcher, sPlayerbotAIConfig->sightDistance);
 
     for (Unit* unit : targets)
     {

src/strategy/actions/UseMeetingStoneAction.cpp

@@ -110,7 +110,7 @@ bool SummonAction::SummonUsingGos(Player* summoner, Player* player)
     std::list<GameObject*> targets;
     AnyGameObjectInObjectRangeCheck u_check(summoner, sPlayerbotAIConfig->sightDistance);
     Acore::GameObjectListSearcher<AnyGameObjectInObjectRangeCheck> searcher(summoner, targets, u_check);
-    Cell::VisitAllObjects(summoner, searcher, sPlayerbotAIConfig->sightDistance);
+    Cell::VisitObjects(summoner, searcher, sPlayerbotAIConfig->sightDistance);
 
     for (GameObject* go : targets)
     {
@@ -130,7 +130,7 @@ bool SummonAction::SummonUsingNpcs(Player* summoner, Player* player)
     std::list<Unit*> targets;
     Acore::AnyUnitInObjectRangeCheck u_check(summoner, sPlayerbotAIConfig->sightDistance);
     Acore::UnitListSearcher<Acore::AnyUnitInObjectRangeCheck> searcher(summoner, targets, u_check);
-    Cell::VisitAllObjects(summoner, searcher, sPlayerbotAIConfig->sightDistance);
+    Cell::VisitObjects(summoner, searcher, sPlayerbotAIConfig->sightDistance);
 
     for (Unit* unit : targets)
     {

src/strategy/raids/icecrown/RaidIccActions.cpp

@@ -6549,7 +6549,7 @@ bool IccSindragosaFrostBombAction::Execute(Event event)
     float range = 200.0f;
     Acore::AnyUnitInObjectRangeCheck u_check(bot, range);
     Acore::UnitListSearcher<Acore::AnyUnitInObjectRangeCheck> searcher(bot, units, u_check);
-    Cell::VisitAllObjects(bot, searcher, range);
+    Cell::VisitObjects(bot, searcher, range);
 
     for (Unit* unit : units)
     {

src/strategy/values/CollisionValue.cpp

@@ -21,7 +21,7 @@ bool CollisionValue::Calculate()
     float range = sPlayerbotAIConfig->contactDistance;
     Acore::AnyUnitInObjectRangeCheck u_check(bot, range);
     Acore::UnitListSearcher<Acore::AnyUnitInObjectRangeCheck> searcher(bot, targets, u_check);
-    Cell::VisitAllObjects(bot, searcher, range);
+    Cell::VisitObjects(bot, searcher, range);
 
     for (Unit* target : targets)
     {

src/strategy/values/NearestCorpsesValue.cpp

@@ -26,7 +26,7 @@ void NearestCorpsesValue::FindUnits(std::list<Unit*>& targets)
 {
     AnyDeadUnitInObjectRangeCheck u_check(bot, range);
     Acore::UnitListSearcher<AnyDeadUnitInObjectRangeCheck> searcher(bot, targets, u_check);
-    Cell::VisitAllObjects(bot, searcher, range);
+    Cell::VisitObjects(bot, searcher, range);
 }
 
 bool NearestCorpsesValue::AcceptUnit(Unit* unit) { return true; }

src/strategy/values/NearestFriendlyPlayersValue.cpp

@@ -14,7 +14,7 @@ void NearestFriendlyPlayersValue::FindUnits(std::list<Unit*>& targets)
 {
     Acore::AnyFriendlyUnitInObjectRangeCheck u_check(bot, bot, range);
     Acore::UnitListSearcher<Acore::AnyFriendlyUnitInObjectRangeCheck> searcher(bot, targets, u_check);
-    Cell::VisitAllObjects(bot, searcher, range);
+    Cell::VisitObjects(bot, searcher, range);
 }
 
 bool NearestFriendlyPlayersValue::AcceptUnit(Unit* unit)

src/strategy/values/NearestGameObjects.cpp

@@ -17,7 +17,7 @@ GuidVector NearestGameObjects::Calculate()
     std::list<GameObject*> targets;
     AnyGameObjectInObjectRangeCheck u_check(bot, range);
     Acore::GameObjectListSearcher<AnyGameObjectInObjectRangeCheck> searcher(bot, targets, u_check);
-    Cell::VisitAllObjects(bot, searcher, range);
+    Cell::VisitObjects(bot, searcher, range);
 
     GuidVector result;
     for (GameObject* go : targets)
@@ -34,7 +34,7 @@ GuidVector NearestTrapWithDamageValue::Calculate()
     std::list<GameObject*> targets;
     AnyGameObjectInObjectRangeCheck u_check(bot, range);
     Acore::GameObjectListSearcher<AnyGameObjectInObjectRangeCheck> searcher(bot, targets, u_check);
-    Cell::VisitAllObjects(bot, searcher, range);
+    Cell::VisitObjects(bot, searcher, range);
 
     GuidVector result;
     for (GameObject* go : targets)

src/strategy/values/NearestNonBotPlayersValue.cpp

@@ -14,7 +14,7 @@ void NearestNonBotPlayersValue::FindUnits(std::list<Unit*>& targets)
 {
     Acore::AnyUnitInObjectRangeCheck u_check(bot, range);
     Acore::UnitListSearcher<Acore::AnyUnitInObjectRangeCheck> searcher(bot, targets, u_check);
-    Cell::VisitAllObjects(bot, searcher, range);
+    Cell::VisitObjects(bot, searcher, range);
 }
 
 bool NearestNonBotPlayersValue::AcceptUnit(Unit* unit)

src/strategy/values/NearestNpcsValue.cpp

@@ -15,7 +15,7 @@ void NearestNpcsValue::FindUnits(std::list<Unit*>& targets)
 {
     Acore::AnyUnitInObjectRangeCheck u_check(bot, range);
     Acore::UnitListSearcher<Acore::AnyUnitInObjectRangeCheck> searcher(bot, targets, u_check);
-    Cell::VisitAllObjects(bot, searcher, range);
+    Cell::VisitObjects(bot, searcher, range);
 }
 
 bool NearestNpcsValue::AcceptUnit(Unit* unit) { return !unit->IsPlayer(); }
@@ -24,7 +24,7 @@ void NearestHostileNpcsValue::FindUnits(std::list<Unit*>& targets)
 {
     Acore::AnyUnitInObjectRangeCheck u_check(bot, range);
     Acore::UnitListSearcher<Acore::AnyUnitInObjectRangeCheck> searcher(bot, targets, u_check);
-    Cell::VisitAllObjects(bot, searcher, range);
+    Cell::VisitObjects(bot, searcher, range);
 }
 
 bool NearestHostileNpcsValue::AcceptUnit(Unit* unit) { return unit->IsHostileTo(bot) && !unit->IsPlayer(); }
@@ -33,7 +33,7 @@ void NearestVehiclesValue::FindUnits(std::list<Unit*>& targets)
 {
     Acore::AnyUnitInObjectRangeCheck u_check(bot, range);
     Acore::UnitListSearcher<Acore::AnyUnitInObjectRangeCheck> searcher(bot, targets, u_check);
-    Cell::VisitAllObjects(bot, searcher, range);
+    Cell::VisitObjects(bot, searcher, range);
 }
 
 bool NearestVehiclesValue::AcceptUnit(Unit* unit)
@@ -52,7 +52,7 @@ void NearestTriggersValue::FindUnits(std::list<Unit*>& targets)
 {
     Acore::AnyUnfriendlyUnitInObjectRangeCheck u_check(bot, bot, range);
     Acore::UnitListSearcher<Acore::AnyUnfriendlyUnitInObjectRangeCheck> searcher(bot, targets, u_check);
-    Cell::VisitAllObjects(bot, searcher, range);
+    Cell::VisitObjects(bot, searcher, range);
 }
 
 bool NearestTriggersValue::AcceptUnit(Unit* unit) { return !unit->IsPlayer(); }
@@ -61,7 +61,7 @@ void NearestTotemsValue::FindUnits(std::list<Unit*>& targets)
 {
     Acore::AnyUnitInObjectRangeCheck u_check(bot, range);
     Acore::UnitListSearcher<Acore::AnyUnitInObjectRangeCheck> searcher(bot, targets, u_check);
-    Cell::VisitAllObjects(bot, searcher, range);
+    Cell::VisitObjects(bot, searcher, range);
 }
 
 bool NearestTotemsValue::AcceptUnit(Unit* unit) { return unit->IsTotem(); }

src/strategy/values/PossibleRpgTargetsValue.cpp

@@ -49,7 +49,7 @@ void PossibleRpgTargetsValue::FindUnits(std::list<Unit*>& targets)
 {
     Acore::AnyUnitInObjectRangeCheck u_check(bot, range);
     Acore::UnitListSearcher<Acore::AnyUnitInObjectRangeCheck> searcher(bot, targets, u_check);
-    Cell::VisitAllObjects(bot, searcher, range);
+    Cell::VisitObjects(bot, searcher, range);
 }
 
 bool PossibleRpgTargetsValue::AcceptUnit(Unit* unit)
@@ -141,7 +141,7 @@ void PossibleNewRpgTargetsValue::FindUnits(std::list<Unit*>& targets)
 {
     Acore::AnyUnitInObjectRangeCheck u_check(bot, range);
     Acore::UnitListSearcher<Acore::AnyUnitInObjectRangeCheck> searcher(bot, targets, u_check);
-    Cell::VisitAllObjects(bot, searcher, range);
+    Cell::VisitObjects(bot, searcher, range);
 }
 
 bool PossibleNewRpgTargetsValue::AcceptUnit(Unit* unit)
@@ -168,7 +168,7 @@ GuidVector PossibleNewRpgGameObjectsValue::Calculate()
     std::list<GameObject*> targets;
     AnyGameObjectInObjectRangeCheck u_check(bot, range);
     Acore::GameObjectListSearcher<AnyGameObjectInObjectRangeCheck> searcher(bot, targets, u_check);
-    Cell::VisitAllObjects(bot, searcher, range);
+    Cell::VisitObjects(bot, searcher, range);
 
     
     std::vector<std::pair<ObjectGuid, float>> guidDistancePairs;

src/strategy/values/PossibleTargetsValue.cpp

@@ -21,7 +21,7 @@ void PossibleTargetsValue::FindUnits(std::list<Unit*>& targets)
 {
     Acore::AnyUnfriendlyUnitInObjectRangeCheck u_check(bot, bot, range);
     Acore::UnitListSearcher<Acore::AnyUnfriendlyUnitInObjectRangeCheck> searcher(bot, targets, u_check);
-    Cell::VisitAllObjects(bot, searcher, range);
+    Cell::VisitObjects(bot, searcher, range);
 }
 
 bool PossibleTargetsValue::AcceptUnit(Unit* unit) { return AttackersValue::IsPossibleTarget(unit, bot, range); }
@@ -30,7 +30,7 @@ void PossibleTriggersValue::FindUnits(std::list<Unit*>& targets)
 {
     Acore::AnyUnfriendlyUnitInObjectRangeCheck u_check(bot, bot, range);
     Acore::UnitListSearcher<Acore::AnyUnfriendlyUnitInObjectRangeCheck> searcher(bot, targets, u_check);
-    Cell::VisitAllObjects(bot, searcher, range);
+    Cell::VisitObjects(bot, searcher, range);
 }
 
 bool PossibleTriggersValue::AcceptUnit(Unit* unit)

src/strategy/values/TankTargetValue.cpp

@@ -14,7 +14,7 @@ class FindTargetForTankStrategy : public FindNonCcTargetStrategy
 public:
     FindTargetForTankStrategy(PlayerbotAI* botAI) : FindNonCcTargetStrategy(botAI), minThreat(0) {}
 
-    void CheckAttacker(Unit* creature, ThreatMgr* threatMgr) override
+    /*void CheckAttacker(Unit* creature, ThreatMgr* threatMgr) override
     {
         if (!creature || !creature->IsAlive())
         {
@@ -37,6 +37,43 @@ public:
                 return;
             }
         }
+        if (minThreat >= threat)
+        {
+            minThreat = threat;
+            result = creature;
+        }
+    }*/
+
+    void CheckAttacker(Unit* creature, ThreatMgr* threatMgr) override
+    {
+        // [Crash fix] Filter out anything that is not ready/valid
+        if (!creature || !creature->IsAlive() || !creature->IsInWorld() || creature->IsDuringRemoveFromWorld())
+            return;
+    
+        if (!threatMgr)
+            return;
+    
+        Player* bot = botAI->GetBot();
+        if (!bot)
+            return;
+    
+        float threat = threatMgr->GetThreat(bot);
+    
+        if (!result || !result->IsAlive() || !result->IsInWorld() || result->IsDuringRemoveFromWorld())
+        {
+            // [Crash fix] If the previous target has become invalid, restart cleanly
+            minThreat = threat;
+            result = creature;
+        }
+    
+        // Neglect si la victime actuelle est le MT (ou s'il n'y a pas de victime)
+        if (HostileReference* cv = threatMgr->getCurrentVictim())
+        {
+            Unit* victim = cv->getTarget();
+            if (victim && victim->ToPlayer() && botAI->IsMainTank(victim->ToPlayer()))
+                return;
+        }
+    
         if (minThreat >= threat)
         {
             minThreat = threat;
@@ -53,7 +90,7 @@ class FindTankTargetSmartStrategy : public FindTargetStrategy
 public:
     FindTankTargetSmartStrategy(PlayerbotAI* botAI) : FindTargetStrategy(botAI) {}
 
-    void CheckAttacker(Unit* attacker, ThreatMgr* threatMgr) override
+    /*void CheckAttacker(Unit* attacker, ThreatMgr* threatMgr) override
     {
         if (Group* group = botAI->GetBot()->GetGroup())
         {
@@ -69,8 +106,32 @@ public:
         {
             result = attacker;
         }
+    }*/
+	void CheckAttacker(Unit* attacker, ThreatMgr* /*threatMgr*/) override
+    {
+        // [Crash fix] Protect against null/out-of-world/being-removed units
+        if (!attacker || !attacker->IsAlive() || !attacker->IsInWorld() || attacker->IsDuringRemoveFromWorld())
+            return;
+    
+        if (Player* me = botAI->GetBot())
+        {
+            if (Group* group = me->GetGroup())
+            {
+                ObjectGuid guid = group->GetTargetIcon(4);
+                if (guid && attacker->GetGUID() == guid)
+                    return;
+            }
+        }
+    
+        // [Crash fix] If 'result' has become invalid, forget it
+        if (result && (!result->IsAlive() || !result->IsInWorld() || result->IsDuringRemoveFromWorld()))
+            result = nullptr;
+    
+        if (!result || IsBetter(attacker, result))
+            result = attacker;
     }
-    bool IsBetter(Unit* new_unit, Unit* old_unit)
+
+    /*bool IsBetter(Unit* new_unit, Unit* old_unit)
     {
         Player* bot = botAI->GetBot();
         // if group has multiple tanks, main tank just focus on the current target
@@ -97,8 +158,47 @@ public:
             return new_dis < old_dis;
         }
         return new_threat < old_threat;
+    }*/
+	bool IsBetter(Unit* new_unit, Unit* old_unit)
+    {
+        // [Crash fix] If either one is invalid, decide straight away
+        if (!new_unit || !new_unit->IsAlive() || !new_unit->IsInWorld() || new_unit->IsDuringRemoveFromWorld())
+            return false;
+        if (!old_unit || !old_unit->IsAlive() || !old_unit->IsInWorld() || old_unit->IsDuringRemoveFromWorld())
+            return true;
+    
+        Player* bot = botAI->GetBot();
+        if (!bot)
+            return false;
+    
+        // if multiple tanks, logically focus on the current target
+        Unit* currentTarget = botAI->GetAiObjectContext()->GetValue<Unit*>("current target")->Get();
+        if (currentTarget && botAI->IsMainTank(bot) && botAI->GetGroupTankNum(bot) > 1)
+        {
+            if (old_unit == currentTarget)
+                return false;
+            if (new_unit == currentTarget)
+                return true;
+        }
+    
+        float new_threat = new_unit->GetThreatMgr().GetThreat(bot);
+        float old_threat = old_unit->GetThreatMgr().GetThreat(bot);
+        float new_dis = bot->GetDistance(new_unit);
+        float old_dis = bot->GetDistance(old_unit);
+    
+        // hasAggro? -> withinMelee? -> threat
+        int nl = GetIntervalLevel(new_unit);
+        int ol = GetIntervalLevel(old_unit);
+        if (nl != ol)
+            return nl > ol;
+    
+        if (nl == 2)
+            return new_dis < old_dis;
+    
+        return new_threat < old_threat;
     }
-    int32_t GetIntervalLevel(Unit* unit)
+
+    /*int32_t GetIntervalLevel(Unit* unit)
     {
         if (!botAI->HasAggro(unit))
         {
@@ -109,12 +209,28 @@ public:
             return 1;
         }
         return 0;
+    }*/
+	int32_t GetIntervalLevel(Unit* unit)
+    {
+        // [Crash fix] Basic guards
+        if (!unit || !unit->IsAlive() || !unit->IsInWorld() || unit->IsDuringRemoveFromWorld())
+            return 0;
+    
+        if (!botAI->HasAggro(unit))
+            return 2;
+    
+        if (Player* bot = botAI->GetBot())
+        {
+            if (bot->IsWithinMeleeRange(unit))
+                return 1;
+        }
+        return 0;
     }
 };
 
 Unit* TankTargetValue::Calculate()
 {
-    // FindTargetForTankStrategy strategy(botAI);
+    // [Note] Using the "smart" strategy below. Guards have been added in CheckAttacker/IsBetter.
     FindTankTargetSmartStrategy strategy(botAI);
     return FindTarget(&strategy);
 }

src/strategy/values/TargetValue.cpp

@@ -14,7 +14,7 @@
 
 Unit* FindTargetStrategy::GetResult() { return result; }
 
-Unit* TargetValue::FindTarget(FindTargetStrategy* strategy)
+/*Unit* TargetValue::FindTarget(FindTargetStrategy* strategy)
 {
     GuidVector attackers = botAI->GetAiObjectContext()->GetValue<GuidVector>("attackers")->Get();
     for (ObjectGuid const guid : attackers)
@@ -27,6 +27,28 @@ Unit* TargetValue::FindTarget(FindTargetStrategy* strategy)
         strategy->CheckAttacker(unit, &ThreatMgr);
     }
 
+    return strategy->GetResult();
+}*/
+
+Unit* TargetValue::FindTarget(FindTargetStrategy* strategy)
+{
+    // [Crash fix] The very first AI tick can occur before everything is "in world".
+    // Filter out units that are non-living / being removed / out of world.
+    AiObjectContext* ctx = botAI->GetAiObjectContext();
+    if (!ctx)
+        return strategy->GetResult();
+
+    GuidVector attackers = ctx->GetValue<GuidVector>("attackers")->Get();
+    for (ObjectGuid const& guid : attackers)
+    {
+        Unit* unit = botAI->GetUnit(guid);
+        if (!unit || !unit->IsAlive() || !unit->IsInWorld() || unit->IsDuringRemoveFromWorld())
+            continue;
+
+        ThreatMgr& threatMgrRef = unit->GetThreatMgr();
+        strategy->CheckAttacker(unit, &threatMgrRef);
+    }
+
     return strategy->GetResult();
 }
 

src/strategy/warlock/WarlockActions.cpp

@@ -21,8 +21,8 @@
 
 const int ITEM_SOUL_SHARD = 6265;
 
-// Checks if the bot has less than 20 soul shards, and if so, allows casting Drain Soul
-bool CastDrainSoulAction::isUseful() { return AI_VALUE2(uint32, "item count", "soul shard") < 20; }
+// Checks if the bot has less than 26 soul shards, and if so, allows casting Drain Soul
+bool CastDrainSoulAction::isUseful() { return AI_VALUE2(uint32, "item count", "soul shard") < 26; }
 
 // Checks if the bot's health is above a certain threshold, and if so, allows casting Life Tap
 bool CastLifeTapAction::isUseful() { return AI_VALUE2(uint8, "health", "self target") > sPlayerbotAIConfig->lowHealth; }

src/strategy/warlock/WarlockAiObjectContext.cpp

@@ -29,8 +29,6 @@ public:
         creators["boost"] = &WarlockStrategyFactoryInternal::boost;
         creators["cc"] = &WarlockStrategyFactoryInternal::cc;
         creators["pet"] = &WarlockStrategyFactoryInternal::pet;
-        creators["spellstone"] = &WarlockStrategyFactoryInternal::spellstone;
-        creators["firestone"] = &WarlockStrategyFactoryInternal::firestone;
         creators["meta melee"] = &WarlockStrategyFactoryInternal::meta_melee_aoe;
         creators["tank"] = &WarlockStrategyFactoryInternal::tank;
         creators["aoe"] = &WarlockStrategyFactoryInternal::aoe;
@@ -42,8 +40,6 @@ private:
     static Strategy* boost(PlayerbotAI* botAI) { return new WarlockBoostStrategy(botAI); }
     static Strategy* cc(PlayerbotAI* botAI) { return new WarlockCcStrategy(botAI); }
     static Strategy* pet(PlayerbotAI* botAI) { return new WarlockPetStrategy(botAI); }
-    static Strategy* spellstone(PlayerbotAI* botAI) { return new UseSpellstoneStrategy(botAI); }
-    static Strategy* firestone(PlayerbotAI* botAI) { return new UseFirestoneStrategy(botAI); }
     static Strategy* meta_melee_aoe(PlayerbotAI* botAI) { return new MetaMeleeAoeStrategy(botAI); }
     static Strategy* tank(PlayerbotAI* botAI) { return new TankWarlockStrategy(botAI); }
     static Strategy* aoe(PlayerbotAI* botAI) { return new AoEWarlockStrategy(botAI); }
@@ -125,6 +121,20 @@ private:
     static Strategy* curse_of_weakness(PlayerbotAI* botAI) { return new WarlockCurseOfWeaknessStrategy(botAI); }
 };
 
+class WarlockWeaponStoneStrategyFactoryInternal : public NamedObjectContext<Strategy>
+{
+public:
+    WarlockWeaponStoneStrategyFactoryInternal() : NamedObjectContext<Strategy>(false, true)
+    {
+        creators["firestone"] = &WarlockWeaponStoneStrategyFactoryInternal::firestone;
+        creators["spellstone"] = &WarlockWeaponStoneStrategyFactoryInternal::spellstone;
+    }
+
+private:
+    static Strategy* firestone(PlayerbotAI* ai) { return new UseFirestoneStrategy(ai); }
+    static Strategy* spellstone(PlayerbotAI* ai) { return new UseSpellstoneStrategy(ai); }
+};
+
 class WarlockTriggerFactoryInternal : public NamedObjectContext<Trigger>
 {
 public:
@@ -333,19 +343,13 @@ private:
     static Action* devour_magic_purge(PlayerbotAI* botAI) { return new CastDevourMagicPurgeAction(botAI); }
     static Action* devour_magic_cleanse(PlayerbotAI* botAI) { return new CastDevourMagicCleanseAction(botAI); }
     static Action* seed_of_corruption(PlayerbotAI* botAI) { return new CastSeedOfCorruptionAction(botAI); }
-    static Action* seed_of_corruption_on_attacker(PlayerbotAI* botAI)
-    {
-        return new CastSeedOfCorruptionOnAttackerAction(botAI);
-    }
+    static Action* seed_of_corruption_on_attacker(PlayerbotAI* botAI) { return new CastSeedOfCorruptionOnAttackerAction(botAI); }
     static Action* rain_of_fire(PlayerbotAI* botAI) { return new CastRainOfFireAction(botAI); }
     static Action* hellfire(PlayerbotAI* botAI) { return new CastHellfireAction(botAI); }
     static Action* shadowfury(PlayerbotAI* botAI) { return new CastShadowfuryAction(botAI); }
     static Action* life_tap(PlayerbotAI* botAI) { return new CastLifeTapAction(botAI); }
     static Action* unstable_affliction(PlayerbotAI* ai) { return new CastUnstableAfflictionAction(ai); }
-    static Action* unstable_affliction_on_attacker(PlayerbotAI* ai)
-    {
-        return new CastUnstableAfflictionOnAttackerAction(ai);
-    }
+    static Action* unstable_affliction_on_attacker(PlayerbotAI* ai) { return new CastUnstableAfflictionOnAttackerAction(ai); }
     static Action* haunt(PlayerbotAI* ai) { return new CastHauntAction(ai); }
     static Action* demonic_empowerment(PlayerbotAI* ai) { return new CastDemonicEmpowermentAction(ai); }
     static Action* metamorphosis(PlayerbotAI* ai) { return new CastMetamorphosisAction(ai); }
@@ -360,10 +364,7 @@ private:
     static Action* searing_pain(PlayerbotAI* botAI) { return new CastSearingPainAction(botAI); }
     static Action* shadow_ward(PlayerbotAI* botAI) { return new CastShadowWardAction(botAI); }
     static Action* curse_of_agony(PlayerbotAI* botAI) { return new CastCurseOfAgonyAction(botAI); }
-    static Action* curse_of_agony_on_attacker(PlayerbotAI* botAI)
-    {
-        return new CastCurseOfAgonyOnAttackerAction(botAI);
-    }
+    static Action* curse_of_agony_on_attacker(PlayerbotAI* botAI) { return new CastCurseOfAgonyOnAttackerAction(botAI); }
     static Action* curse_of_the_elements(PlayerbotAI* ai) { return new CastCurseOfTheElementsAction(ai); }
     static Action* curse_of_doom(PlayerbotAI* ai) { return new CastCurseOfDoomAction(ai); }
     static Action* curse_of_exhaustion(PlayerbotAI* ai) { return new CastCurseOfExhaustionAction(ai); }
@@ -397,6 +398,7 @@ void WarlockAiObjectContext::BuildSharedStrategyContexts(SharedNamedObjectContex
     strategyContexts.Add(new WarlockPetStrategyFactoryInternal());
     strategyContexts.Add(new WarlockSoulstoneStrategyFactoryInternal());
     strategyContexts.Add(new WarlockCurseStrategyFactoryInternal());
+    strategyContexts.Add(new WarlockWeaponStoneStrategyFactoryInternal());
 }
 
 void WarlockAiObjectContext::BuildSharedActionContexts(SharedNamedObjectContextList<Action>& actionContexts)

src/strategy/warlock/WarlockTriggers.cpp

@@ -46,7 +46,7 @@ bool WarlockConjuredItemTrigger::IsActive()
 
 bool OutOfSoulShardsTrigger::IsActive() { return GetSoulShardCount(botAI->GetBot()) == 0; }
 
-bool TooManySoulShardsTrigger::IsActive() { return GetSoulShardCount(botAI->GetBot()) >= 6; }
+bool TooManySoulShardsTrigger::IsActive() { return GetSoulShardCount(botAI->GetBot()) >= 26; }
 
 bool OutOfSoulstoneTrigger::IsActive() { return GetSoulstoneCount(botAI->GetBot()) == 0; }
 
@@ -207,7 +207,11 @@ bool WrongPetTrigger::IsActive()
     if (enabledCount != 1)
         return false;
 
-    // Step 3: At this point, we know only one pet strategy is enabled.
+    // Step 3: If there is no pet, do not trigger.
+    if (!pet)
+        return false;
+
+    // Step 4: At this point, we know only one pet strategy is enabled.
     //         We check if the currently summoned pet matches the enabled strategy.
     bool correctPet = false;
     if (pet)
@@ -218,16 +222,16 @@ bool WrongPetTrigger::IsActive()
             correctPet = true;
     }
 
-    // Step 4: If the correct pet is already summoned, the trigger should not activate.
+    // Step 5: If the correct pet is already summoned, the trigger should not activate.
     if (correctPet)
         return false;
 
-    // Step 5: Finally, check if the bot actually knows the spell to summon the desired pet.
+    // Step 6: Finally, check if the bot actually knows the spell to summon the desired pet.
     //         If so, the trigger is active (bot should summon the correct pet).
     if (bot->HasSpell(enabledPet->spellId))
         return true;
 
-    // Step 6: If we get here, the bot doesn't know the spell required to support the active pet strategy
+    // Step 7: If we get here, the bot doesn't know the spell required to support the active pet strategy
     return false;
 }